Hoist for motor vehicles



y v H. SWANSON 1,714,644

HOIST FOR MOTOR VEHICLES Filed J e 2, 1927 2 Sheets-S eet l w H ATTORNEYS.

May 28, 1929. H. SWANSON 4,64

HOIST FOR MOTOR VEHICLES Fild June 2, 1927 2 Sheets-Sheet 2 flaw/1y (fwd/7J0, INVENTOR.

Mfuesses aacaw w m W/M; WM AT'TO'RNEYQ.

Patented May 2a, 1929.

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HARRY SWANSON, or anno, NEVADA.

* Hoisr roa'ivroroa vnHicLns;

Application filed. June 2; 1927.

This invention relates to a hoist construction, and vmore particularly to a construction for application to a motor vehicle with which the power of the motor may lized to lift considerableweight.

An object of the invention is the. construction of av hoist that may be quickly and substantially mounted on the various types 0 motor vehicles now in use, and when in applied position may be directly coupled to the engine so that the rapidity of pull of be manually controlled according to the will of the operator.

Another object of the invention is the manner of designingand substantially connecting the various component parts so that the hoist may efliciently operate under various conditions and which is capable of withstanding all the usual strains to which an I apparatusof this character is subject when in' use. p

. Still another object of the invention is the construction of a hoist incorporating therein a pair of companion control mechanisms whereby the direction and speed of travel of the hoist may be controlled and the time of operations be under the positive control of the operator.

Besides the above my invention is distinguished in the novel construction of. a frame supporting in a novel manner various other parts which combine to cause the travel of the cables in the proper direction to reduce friction to a minimum.

With these and other objects in view, my invention will be better understood from a nection with wherein 2- Figure 1 is a side elevation of my improved hoist installed upon a motor vehicle of the truck type;

Figure 2 is a rear elevation of the hoist;

Figure 3 is a vertical sectional view through the cross head and its associated parts;

Figure ing mechanism for the drum.

Again referring to the drawings, numeral 1 designates a frame constructed from a pair of upwardly extending, gently arranged beams 2 and 3, the upper ends of which are securely bound together by the opposing bearing plates 4: carrying the pivot bolt 5. The intermediate portion of a cross head 6' is mounted on this pivot the accom an in drawin s description of the same when taken in con- 1 4; is a side elevation of the operat- Serial No. 196,070.

bolt 5 so that'the cross. beam may rock in a verticaldirection to adjust itself according to the load. The ends of thecross beam are formed into hooks 7 .for suspending the pulleys 8 that are horizontally spaced apart andarranged on opposite sides ofthe frame. Cross bars 9-bind the beams together at a they bearing plates and these bars 9 support an axle 10. upon which are mounted the guide rollers 11 shown in this particular instance as two in number corre-y' sponding to the number of pulleys. The lower ends of the beams are rigidly secured to stub shafts 12 journaled in the bearings 13 that are rigidly secured to the body beams 13 of the motor vehicle 0, shown in this particular instance as of the truck type, and including the pivoted body D. I By this construction it will'be .appreciated that the frame may be given a limited. swinging movement toproperly adjust itself to ac- 1 commodate the proper attachment of the brace 14k to a stationary portion of the truck.

-As far as I have proceeded, it will be appreciated that I have provided a very. substantial construction of frame in which the component parts are so connected as to facilitate the installation of the frame upon the many makes of trucks now on the market or other types of motor vehicles, and during this installation of the frame various ad ust- 'ments may bequickly and properly accomv on thevm'ain plished. A drum 15 mounted shaft 16- journaled inthe beam therearound the cables 17 around the guide: rollers each other at an angle to be properly passed around the pulleys 8. By this arrangement the cables will parallel each other fora portion of their has wrapped travel centrally of the frame and will then extend directly to the pulleys so that the direction of travel may be changed to accomplish the proper connection with the bracket 18 that is rigidly secured to the body D and accomplish this result in such a manner that resistance or friction is reduced to a minimum.

that are guided 11 so as to cross Various types of mechanisms may be used for operating the drum, which in certain inbe manually operated and other instances mechanically operatedby the motor of the vehicle. In the drawings, I

have illustrated power mechanism for operating the hoist, which mechanism is of a novel construction so as to enable the hoist V to be'power operated in either direction of travel and the interval 2 i r r 1,714,644

travel, the speed of which is accurately controlled. To accomplish this desired result, the shaft 16 has mounted thereon a worm wheel 19 that is in constant mesh with a Worm 20 tangentiallyarranged, thereby acting in the capacity of a lock device for preventing accidental movement of the cables. This worm 20 is mounted on a drive shaft 21 that is connected with ordiscon nected from the transmission mechanism, diagrammatically illustrated at 22, by means of the clutch 23. This transmission mechanism 22, which may be of two or more speeds or capable of forward and reverse motion, receives its power from the motor by the drive connection 24.

' For the purpose of controlling the direction of travel of the cables, their rate of of operation, I provide the companion control devices 25 and 26, the former consisting of a control lever 21 connected to a control rod 28 that extends to the transmission mechanism to ac complish the operation thereof in a manner well known in the art. The control device 26 consists of a foot operated pedal 29 held in a predeterminedposition by the spring 30 and pivotally connected to a control rod 31 that extends to the fork 32 that operates the heretofore mentioned clutch 23.

- From the foregoing description taken in connection with theaccompanying drawings, it Will be appreciated that I provide a hoist construction substantial throughout and which may be quickly applied to the body of the motor vehicle to be quickly and conveniently operated by the driver of the vehicle through the design and location of the control devices. This is brought about by necting the drum 15 directly with the motor of the vehicle through the transmission mechanism, which is controlled by the lever 27, and controlling the action of the transm ssion mechanism upon the drum through the use of the connecting or the operating mechanism.

In concluding, I wish to lay considerable stress upon the novel arrangement of the operating mechanism and the novel travel of the cables so that considerable power can be applied to the cables and from the cables to the object to belifted 'WltllOUt any possibility of a large portion of this transmission mechanism bein consumed in its tram-sinission to the seat or operation. This reduction in waste energy and-the simplicity of construction and o1.)eration of the various parts considerably increases the life of the apparatus as a whole and enables a single type or hoist to have a wide range of operation so as to take care of a wide range of load.

It is, of course, to be understood that the relative arrangement of the parts and their cooperative connection may be changed in various other manners than illustrated'and, therefore, I do not desire to be limited in any manner except lowing claim.

claim zpedal 29 which is capable of In a hoist construction, a pair of upwardly means mountplates extending converging beams, ing the lower ends of thebeams, rigidly securing the upper ends of the beams together, cross bars extending between the beams at a point below'the plates, guide.rollers'supported by the cros bars,

p tion pivotally mounted between said plates .andhaving its ends terminating in hooks,

pulleys suspended from said hooks, a drum journaled upon the beams, and cables Wound around the drum and led over said guide rollers 1n crossing relation to each other and extended over said pulleys.

In testimony whereof I afiix my signature.

HARRY SWANSON.

disconnectin the frame from assetforth in the fol- 

